Wireless communication receiver and method for determining a reference frequency in a wireless communication device

A method of autonomously determining a reference frequency, said method comprising the steps of:

• providing a known fixed frequency source from an internal oscillator in a wireless communication device;
• receiving a signal from an unknown frequency source associated with a host device;
• calculating the frequency of said signal from said unknown frequency source based upon the frequency of said known fixed frequency source;
• and
• establishing a communication link between said wireless communication device and said host device;
• and
• establishing a communication link between said wireless communication device and a communication network.

A method of autonomously determining a reference frequency, said method comprising the steps of:

• providing a known frequency source associated with a GPS receiver;
• receiving a signal from an unknown frequency source associated with a host device at said GPS receiver;
• calculating the frequency of said signal from said unknown frequency source based upon the frequency of said known fixed frequency source;
• and
• establishing a communication link between said GPS receiver and said host device.

A method of autonomously determining a reference frequency, said method comprising the steps of:

• providing a known fixed frequency source associated with a GPS receiver;
• using a counter to count the cycles of an unknown frequency source associated with a host device;
• calculating the frequency of said unknown frequency source based upon the count of said counter and the frequency of said known fixed frequency source;
• and
• establishing a communication link between said GPS receiver and said host device.

A method of autonomously determining a reference frequency, said method comprising the steps of:

• providing a known frequency source associated with a GPS receiver;
• receiving a signal from an unknown frequency source from a host device at said GPS receiver;
• and
• calculating the frequency of said signal from said unknown frequency source based upon the frequency of said known fixed frequency source;
• and
• establishing a communication link between said wireless communication device and a communication network.

A method of autonomously determining a reference frequency, said method comprising the steps of:

• providing a known frequency source associated with a GPS receiver;
• using a first counter to determine a predetermined period of time based upon said known frequency source;
• coupling an unknown frequency source from a host to said GPS receiver;
• using a second counter to count the cycles of said unknown frequency source;
• calculating the frequency of said unknown frequency source based upon a count of said second counter during said predetermined period of time;
• and
• receiving a GPS communication signal at said GPS receiver.

A wireless communication device comprising:

• a first frequency source associated with a GPS receiver and generating a substantially fixed frequency;
• a second frequency source associated with a host device and generating an unknown frequency;
• a counter coupled to said second frequency source;
• and
• a control circuit coupled to said counter, said control circuit determining the frequency of said second frequency source based upon said substantially fixed frequency and a value of said counter.

A wireless communication device comprising:

• an internal oscillator associated with a GPS receiver and generating a known fixed frequency;
• a first counter coupled to said internal oscillator;
• an external oscillator associated with a host device and generating an unknown frequency;
• a second counter coupled to said external oscillator;
• and
• a control circuit coupled to said first counter and said second counter, said control circuit determining the frequency of said unknown frequency.